入射光线与镜面夹角为15°,则反射角为______;当入射角减少15°时,则反射 发布时间:2017-05-12 17:52 │ 来源:www.tikuol.com 题型:填空题 问题: 入射光线与镜面夹角为15°,则反射角为______;当入射角减少15°时,则反射角为______.
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